<section id = "api_ViewConfigurationSet-instance-has" data-view = "true" data-view-title = "viewConfigurationSet.has(key)">
	<header>
		<a class = "nav-back" data-view-rel = ":back"></a>
		<span>viewConfigurationSet.has(key)</span>
		<a class = "menu"></a>
	</header>
	<div class = "body">
		<div class = "api-name">viewConfigurationSet.has(key)</div>
		<div class = "api-usage">判断特定名称的配置项是否存在。</div>
		<div class = "api-params"><ol>
			<li>key – {String} 配置项名称</li>
		</ol></div>
		<div class = "api-returns">配置项是否存在</div>
	</div>
	<footer><div class = "btn next">下一节</div></footer>
</section>